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Recognised as Colour

#E64C03

  • #E64C03
  • Orange
  • Dark
  • Nearest: Orange red

#E64C03 is a orange with RGB values 230, 76, 3 and HSL 19°, 97%, 46%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#E64C03#E64C03
HEX#E64C03
RGBrgb(230, 76, 3)
RGB (0–1)0.902, 0.298, 0.0118
RGB percentages90.2%, 29.8%, 1.2%
HSLhsl(19.3, 97.4%, 45.7%)
HSV / HSBhsv(19.3, 98.7%, 90.2%)
CMYK0%, 67%, 98.7%, 9.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,092,739
CSS custom property--colour: #E64C03;

Brightness & contrast

Relative luminance0.21998WCAG 2.x, 0 is black and 1 is white
Perceived brightness138.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.4:1
Contrast with white3.89:1WCAG normal text: Fail
Contrast with black5.4:1WCAG normal text: AA
Greyscale equivalent#676767
Inverted#19B3FC

Colour vision & accessibility

Protanopia#7B6B00no red cones; affects about 1% of men; ΔE 62.8 from the original
Deuteranopia#A08E00no green cones; the most common form, about 1% of men; ΔE 63.2 from the original
Tritanopia#FE1042no blue cones; rare, and affects men and women equally; ΔE 33.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.89:1WCAG large text: AA
Contrast with black, large text5.4:1WCAG large text: AAA

Named colours

Nearest named CSS colourOrange red (#FF4500)ΔE 12.07, a distinctly different colour
Hue familyorange
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#039DE6
Analogous#E6032C, #E6BE03
Triadic#03E64C, #4C03E6
Split complementary#03E6BE, #032BE6
Tetradic#2BE603, #039DE6, #BE03E6

Tints, shades & saturation

Lighter +40%#FECEB7
Lighter +30%#FDAB85
Lighter +20%#FD8952
Lighter +10%#FC6720
Darker −10%#B43B02
Darker −20%#812B02
Darker −30%#4F1A01
Darker −40%#1D0900
More saturated +25%#E94B00
Less saturated −25%#C95620

Channel breakdown

R230
G76
B3
Red230 (90.2%)
Green76 (29.8%)
Blue3 (1.2%)
Hue19.3°
Saturation (HSL)97.42%
Lightness45.69%
Dominant channelRed
Hex per channelR E6 · G 4C · B 03

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Every value on this page was computed from “e64c03” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.